If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( y )
y+2 = 0
y^2-4 = 0
y-2 = 0
y+2 = 0
y+2 = 0
y+2 = 0 // - 2
y = -2
y^2-4 = 0
y^2-4 = 0
1*y^2 = 4 // : 1
y^2 = 4
y^2 = 4 // ^ 1/2
abs(y) = 2
y = 2 or y = -2
y-2 = 0
y-2 = 0
y-2 = 0 // + 2
y = 2
y in (-oo:-2) U (-2:2) U (2:+oo)
7/(y^2-4)-(4/(y+2)) = 5/(y-2) // - 5/(y-2)
7/(y^2-4)-(4/(y+2))-(5/(y-2)) = 0
7/(y^2-4)-4*(y+2)^-1-5*(y-2)^-1 = 0
7/(y^2-4)-4/(y+2)-5/(y-2) = 0
(7*(y+2)*(y-2))/((y^2-4)*(y+2)*(y-2))+(-4*(y^2-4)*(y-2))/((y^2-4)*(y+2)*(y-2))+(-5*(y^2-4)*(y+2))/((y^2-4)*(y+2)*(y-2)) = 0
7*(y+2)*(y-2)-4*(y^2-4)*(y-2)-5*(y^2-4)*(y+2) = 0
15*y^2-4*y^3-5*y^3-10*y^2+16*y+20*y-60+40 = 0
5*y^2-9*y^3+36*y-20 = 0
5*y^2-9*y^3+36*y-20 = 0
5*y^2-9*y^3+36*y-20 = 0
{ 1, -1, 2, -2, 4, -4, 5, -5, 10, -10, 20, -20 }
1
y = 1
5*y^2-9*y^3+36*y-20 = 12
1
-1
y = -1
5*y^2-9*y^3+36*y-20 = -42
-1
2
y = 2
5*y^2-9*y^3+36*y-20 = 0
2
y-2
10-9*y^2-13*y
5*y^2-9*y^3+36*y-20
y-2
9*y^3-18*y^2
36*y-13*y^2-20
13*y^2-26*y
10*y-20
20-10*y
0
10-9*y^2-13*y = 0
DELTA = (-13)^2-(-9*4*10)
DELTA = 529
DELTA > 0
y = (529^(1/2)+13)/(-9*2) or y = (13-529^(1/2))/(-9*2)
y = -2 or y = 5/9
y in { -2, 5/9, 2}
(y+2)*(y-5/9)*(y-2) = 0
((y+2)*(y-5/9)*(y-2))/((y^2-4)*(y+2)*(y-2)) = 0
((y+2)*(y-5/9)*(y-2))/((y^2-4)*(y+2)*(y-2)) = 0 // * (y^2-4)*(y+2)*(y-2)
(y+2)*(y-5/9)*(y-2) = 0
( y+2 )
y+2 = 0 // - 2
y = -2
( y-2 )
y-2 = 0 // + 2
y = 2
( y-5/9 )
y-5/9 = 0 // + 5/9
y = 5/9
y in { -2}
y in { 2}
y = 5/9
| -2(2x-3)+3(x-4)= | | X/2-5/3=-x/2+3/4 | | x/7+x/6=13/24 | | 9t-8=7t-4 | | 8b+-5=35 | | 3x+8=44-6x | | 56-3x=6x+23 | | -4x-3=15 | | b-7=-5p | | x^2+y^2-2kx+y-4=0 | | 3+1/2(4)=x | | X/2+1=2x-5 | | 6x+3=-1+2x | | 6+c/13=-3 | | 6x+3=1+2x | | n*(4/5n)=320 | | 10(m-4)=2m | | 31/2(4)=x | | 4*(x-5)=12 | | 81-(72-91:7)+26*5= | | 5p-5=4p+5 | | 7/(y^2-4)-4/(y-2)=5/(y-2) | | 5x=78-8x | | -(3x-5)-(2x-6)+1=-5(x-1)-(3x-2)+3 | | 3x+10=-5/9x+1 | | 4(2x+1)+2(x-3)= | | 7(a-3)-(2a+1)=a-2(4a+8) | | 2x+16=22-4x | | -4x^3+11x+5y= | | 14-8x=82-22x | | 8x+20=100 | | (N+7)=8n+56 |